A method for booting a host device from an mmc/sd device, a...

G - Physics – 06 – F

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G06F 9/445 (2006.01)

Patent

CA 2636648

Systems and methods for booting a host device(s) from a peripheral device(s) via an interface, such as an MMC/SD interface, with power terminals, a data bus with data bus terminals, a clock line with a clock terminal and a command line with command terminal. Power is provided to the power terminals, and the command terminal of the MMC/SD or analogous interface is set during power-up to low. The data bus is monitored for a start bit of data transmission.

La présente invention concerne des systèmes et des procédés d'amorçage d'un ou plusieurs dispositifs hôtes depuis un ou plusieurs périphériques par l'intermédiaire d'une interface telle qu'une interface de carte multimédia ou numérique sécurisée "MMC/SD" (Multi Media Cards / Secure Digital) pourvue de bornes d'alimentation électrique, d'un bus de données pourvu de bornes de bus de données, d'une ligne d'horloge avec une borne d'horloge, et d'une ligne de commande avec borne de commande. Les bornes d'alimentation électrique sont alimentées, et la borne de commande de l'interface MMC/SD ou analogue est en signal bas pendant la mise sous tension. Le bus de données est sous surveillance dans l'attente d'un bit de début de transmission de données.

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